test: add logger test

Author: lwabish

logger/logger_test.go

@@ -0,0 +1,15 @@
+package logger
+
+import (
+	"context"
+	"log"
+	"os"
+	"testing"
+)
+
+func TestLogger(t *testing.T) {
+	l := NewLogger(log.New(os.Stdout, "\r\n", log.LstdFlags), Info, true)
+	for i := 0; i < 4; i++ {
+		l.Info(context.Background(), "request url: %d", i)
+	}
+}